Disconnect the tablet. Press and hold Power for 10 seconds. The first boot may take 5-10 minutes. Do not interrupt it.
The safest way to get the stock firmware is using the Lenovo Smart Assistant (LSA) tool on a Windows PC. lenovo tab m8 tb8505x firmware
The Lenovo Tab M8 TB-8505X is an 8-inch Android tablet variant. Firmware (stock ROM, bootloader, recovery, and OTA packages) is central to device functionality, security, and repairability. This paper surveys firmware sources, flashing workflows, risk mitigation, and troubleshooting steps relevant to this model. Disconnect the tablet
Lenovo Smart Device is a software tool that allows you to manage and update your Lenovo devices. To update the firmware using Lenovo Smart Device: The safest way to get the stock firmware
The tool will progress through: Red (Preloader) → Yellow (DAO) → Purple/Blue (Downloading partitions). Wait for a green checkmark ✅ (Download OK).